IdentityMapper

[Stefan Groschupf]

Hi,

what is the reason that each job that has no mapper defined runs the  
IdentityMapper?
Handling different formats (as discussed) between mapping and  
reducing is difficult.
Having one job that just map in the one format and having another job  
that just reduce
in a other format would be a nice workaround of the format problem  
but the IdentityMapper makes this workaround impossible.

Thanks any clarification.
Stefan